The UK's most complete GLP-1 guide
Every Question Answered. Every Side Effect Explained.
- How GLP-1 medications work
- Mounjaro vs Wegovy compared
- Injection instructions
- Side effects & solutions
- What to eat on treatment
- FAQs answered
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Mounjaro Recipes for Weight Loss — UK Guide
If you're taking Mounjaro (tirzepatide) as a weekly weight loss injection, eating the right foods makes a real difference. Mounjaro works best when combined with a reduced-calorie diet and regular physical activity — this isn't just about following recipes, it's about supporting your body while the medication helps regulate appetite. This guide covers practical, NHS-aligned meal ideas designed for people using prescription weight loss injections like Mounjaro in the UK, helping you make sustainable food choices that complement your treatment.
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Calculate Your BMI Instantly
Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.
What Is BMI and Why Does It Matter?
Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).
While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.
How Mounjaro Changes Your Eating Habits
Mounjaro is a GIP and GLP-1 receptor agonist — a weekly weight loss injection that works by reducing appetite, slowing how food moves through your stomach, and helping you feel fuller on smaller portions. This means your approach to meals naturally changes. Many people find they can't eat as much as before, nausea (especially early in treatment) may affect food preferences, and portion sizes naturally reduce.
Understanding these changes helps you choose recipes that work with your body, not against it. The goal isn't restriction — it's finding satisfying foods that support your treatment while keeping you nourished. Our GLP-1 weight loss calculator can help you estimate expected results at different Mounjaro doses, so you understand what to expect alongside dietary changes.
- Early on: smaller, frequent meals often work better than large meals
- Protein-rich foods help maintain muscle during weight loss
- Stay hydrated — nausea can make dehydration worse
- Avoid greasy or very sweet foods if they trigger nausea
Clinically BackedWeight Loss
No appointments. No waiting rooms. Just care — from a UK-regulated online pharmacy.
How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
Practical Mounjaro-Friendly Recipes and Meal Ideas
The best recipes for Mounjaro users are simple, protein-focused, and portion-controlled. Think grilled chicken breast with roasted vegetables, baked salmon with sweet potato, scrambled eggs with wholemeal toast, or lentil-based soups. These choices provide sustained energy without overwhelming your smaller appetite.
Focus on whole foods: lean proteins (chicken, fish, eggs, Greek yoghurt), complex carbohydrates (brown rice, sweet potatoes, oats), and plenty of vegetables. Avoid ultra-processed foods, high-fat takeaways, and sugary drinks — these tend to trigger nausea more readily. Use our free progress tracker to log meals and weight changes, helping you identify which foods work best for your body. Your GP or a registered dietitian can provide personalised meal planning if you're struggling with food choices during treatment.
- Dual GIP/GLP-1 receptor agonist
- Up to 22.5% body weight loss (SURMOUNT-1)
- Weekly injection, dose escalation over 20+ weeks
- Available via private prescription in the UK
- Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
- GLP-1 receptor agonist
- Up to 15–17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Mounjaro vs Wegovy: Head-to-Head
A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, vomiting, diarrhoea |
Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.
Am I Eligible for Weight Loss Medication?
In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- BMI of 27 or above
- Plus type 2 diabetes
- Or high blood pressure
- Or obstructive sleep apnoea
Use our BMI calculator to check whether your BMI falls within the eligible range.
How We Built These Tools
Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.
All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.
We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.
Frequently Asked Questions
Common questions about BMI, weight loss medications, and our free UK tools.
Can I eat normally while taking Mounjaro?
Not at first. Mounjaro reduces appetite significantly, so normal portion sizes often feel uncomfortable. Most people eat 30–40% less naturally. This typically settles as your body adapts, but portions usually remain smaller than pre-treatment. Your GP can advise on whether your intake is adequate.
What foods should I avoid on Mounjaro?
High-fat foods, fried takeaways, and very sweet items often trigger nausea. Alcohol can also cause nausea and dehydration. Avoid large meals — smaller, frequent meals work better. If specific foods cause discomfort, skip them and try again later. Keep a food diary to identify triggers.
Is it safe to follow a very low-calorie diet with Mounjaro?
No. Never combine Mounjaro with extreme calorie restriction without medical supervision. The combination can lead to muscle loss and nutrient deficiency. Aim for a moderate calorie deficit (500 kcal/day for ~0.5 kg weekly loss) alongside balanced meals. Always discuss your diet with your GP or prescriber.
Can I use weight loss recipes from apps while on Mounjaro?
Many general weight loss recipes work, but remember Mounjaro users typically eat much smaller portions. Adjust recipes for smaller serving sizes and focus on protein. Apps designed for GLP-1 or Mounjaro users may be more practical, though NHS dietitian advice is most reliable for your individual needs.
Does diet affect how well Mounjaro works?
Yes. Mounjaro's effectiveness depends on three things together: the medication itself, reduced calorie intake, and regular physical activity. A balanced, reduced-calorie diet with adequate protein supports better results than poor food choices. Your prescriber can discuss whether your current diet supports your treatment goals.
Ready to take control of your weight loss journey?
Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.